Demo branch adding JSCAD type, without implementing the render

Related to #411

app/web/src/helpers/cadPackages/index.ts

@@ -1,7 +1,12 @@
+import { DefaultKernelExport } from './common'
+import type { CadPackage } from 'src/helpers/hooks/useIdeState'
+
 import openscad from './openScadController'
 import cadquery from './cadQueryController'
+import jscad from './jsCadController'
 
-export const cadPackages = {
+export const cadPackages: {[key in CadPackage]: DefaultKernelExport} = {
   openscad,
   cadquery,
+  jscad,
 }

app/web/src/helpers/cadPackages/jsCadController.ts

@@ -0,0 +1,15 @@
+import { RenderArgs, DefaultKernelExport, createUnhealthyResponse } from './common'
+
+export const render: DefaultKernelExport['render'] = async ({
+  code,
+  settings,
+}: RenderArgs) => {
+  // do your magic
+  return createUnhealthyResponse( new Date(), 'JSCAD controller not implemented yet')
+}
+
+const jsCadController: DefaultKernelExport = {
+  render,
+}
+
+export default jsCadController